1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.taglib.portletext;
24  
25  import com.liferay.portal.kernel.log.Log;
26  import com.liferay.portal.kernel.log.LogFactoryUtil;
27  import com.liferay.portal.kernel.util.JavaConstants;
28  import com.liferay.portal.kernel.util.Validator;
29  import com.liferay.portal.model.Layout;
30  import com.liferay.portal.util.WebKeys;
31  import com.liferay.portlet.PortletPreferencesFactoryUtil;
32  import com.liferay.portlet.layoutconfiguration.util.RuntimePortletUtil;
33  
34  import javax.portlet.PortletRequest;
35  import javax.portlet.PortletResponse;
36  import javax.portlet.RenderRequest;
37  import javax.portlet.RenderResponse;
38  
39  import javax.servlet.ServletContext;
40  import javax.servlet.http.HttpServletRequest;
41  import javax.servlet.http.HttpServletResponse;
42  import javax.servlet.jsp.JspException;
43  import javax.servlet.jsp.PageContext;
44  import javax.servlet.jsp.tagext.TagSupport;
45  
46  /**
47   * <a href="RuntimeTag.java.html"><b><i>View Source</i></b></a>
48   *
49   * @author Brian Wing Shun Chan
50   */
51  public class RuntimeTag extends TagSupport {
52  
53      public static void doTag(
54              String portletName, PageContext pageContext,
55              ServletContext servletContext, HttpServletRequest request,
56              HttpServletResponse response)
57          throws Exception {
58  
59          doTag(
60              portletName, null, pageContext, servletContext, request, response);
61      }
62  
63      public static void doTag(
64              String portletName, String queryString, PageContext pageContext,
65              ServletContext servletContext, HttpServletRequest request,
66              HttpServletResponse response)
67          throws Exception {
68  
69          doTag(
70              portletName, null, null, pageContext, servletContext, request,
71              response);
72      }
73  
74      public static void doTag(
75              String portletName, String queryString, String defaultPreferences,
76              PageContext pageContext, ServletContext servletContext,
77              HttpServletRequest request, HttpServletResponse response)
78          throws Exception {
79  
80          PortletRequest portletRequest = (PortletRequest)request.getAttribute(
81              JavaConstants.JAVAX_PORTLET_REQUEST);
82  
83          RenderRequest renderRequest = null;
84  
85          if ((portletRequest != null) &&
86              (portletRequest instanceof RenderRequest)) {
87  
88              renderRequest = (RenderRequest)portletRequest;
89          }
90  
91          PortletResponse portletResponse = (PortletResponse)request.getAttribute(
92              JavaConstants.JAVAX_PORTLET_RESPONSE);
93  
94          RenderResponse renderResponse = null;
95  
96          if ((portletResponse != null) &&
97              (portletResponse instanceof RenderResponse)) {
98  
99              renderResponse = (RenderResponse)portletResponse;
100         }
101 
102         String portletId = portletName;
103 
104         StringBuilder sb = new StringBuilder();
105 
106         try {
107             request.setAttribute(WebKeys.RENDER_PORTLET_RESOURCE, Boolean.TRUE);
108 
109             if (Validator.isNotNull(defaultPreferences)) {
110                 PortletPreferencesFactoryUtil.getPortletSetup(
111                     request, portletId, defaultPreferences);
112             }
113 
114             RuntimePortletUtil.processPortlet(
115                 sb, servletContext, request, response, renderRequest,
116                 renderResponse, portletId, queryString);
117         }
118         finally {
119             request.removeAttribute(WebKeys.RENDER_PORTLET_RESOURCE);
120         }
121 
122         if (pageContext != null) {
123             pageContext.getOut().print(sb.toString());
124         }
125         else {
126 
127             // LEP-1023
128 
129             //res.getOutputStream().print(renderPortletSM.toString());
130             response.getWriter().print(sb.toString());
131         }
132     }
133 
134     public int doEndTag() throws JspException {
135         try {
136             HttpServletRequest request =
137                 (HttpServletRequest)pageContext.getRequest();
138 
139             Layout layout = (Layout)request.getAttribute(WebKeys.LAYOUT);
140 
141             if (layout == null) {
142                 return EVAL_PAGE;
143             }
144 
145             ServletContext servletContext =
146                 (ServletContext)request.getAttribute(WebKeys.CTX);
147 
148             HttpServletResponse response =
149                 (HttpServletResponse)pageContext.getResponse();
150 
151             doTag(
152                 _portletName, _queryString, _defaultPreferences, pageContext,
153                 servletContext, request, response);
154 
155             return EVAL_PAGE;
156         }
157         catch (Exception e) {
158             _log.error(e, e);
159 
160             throw new JspException(e);
161         }
162     }
163 
164     public void setPortletName(String portletName) {
165         _portletName = portletName;
166     }
167 
168     public void setQueryString(String queryString) {
169         _queryString = queryString;
170     }
171 
172     public void setDefaultPreferences(String defaultPreferences) {
173         _defaultPreferences = defaultPreferences;
174     }
175 
176     private static Log _log = LogFactoryUtil.getLog(RuntimeTag.class);
177 
178     private String _portletName;
179     private String _queryString;
180     private String _defaultPreferences;
181 
182 }